auldest

Adjective

1. superlative form of auld: most auld
   • And, in the third place (for I'll speak the truth and shame the deil) as I could not thole the gibes and idle tongues of a wheen fools that, for their diversion, would be asking me, "How the wife and bairns were; and if...
   • Greed is envy's auldest brither: scraggy wark they mak thegither. - 1868, Alexander Hislop, The Proverbs of Scotland: